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Pisani S, Mauri V, Negrello E, Mauramati S, Alaimo G, Auricchio F, Benazzo M, Dorati R, Genta I, Conti B, Ferretti VV, De Silvestri A, Pietrabissa A, Marconi S. Assessment of different manufacturing techniques for the production of bioartificial scaffolds as soft organ transplant substitutes. Front Bioeng Biotechnol 2023; 11:1186351. [PMID: 37441194 PMCID: PMC10333585 DOI: 10.3389/fbioe.2023.1186351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
Introduction: The problem of organs' shortage for transplantation is widely known: different manufacturing techniques such as Solvent casting, Electrospinning and 3D Printing were considered to produce bioartificial scaffolds for tissue engineering purposes and possible transplantation substitutes. The advantages of manufacturing techniques' combination to develop hybrid scaffolds with increased performing properties was also evaluated. Methods: Scaffolds were produced using poly-L-lactide-co-caprolactone (PLA-PCL) copolymer and characterized for their morphological, biological, and mechanical features. Results: Hybrid scaffolds showed the best properties in terms of viability (>100%) and cell adhesion. Furthermore, their mechanical properties were found to be comparable with the reference values for soft tissues (range 1-10 MPa). Discussion: The created hybrid scaffolds pave the way for the future development of more complex systems capable of supporting, from a morphological, mechanical, and biological standpoint, the physiological needs of the tissues/organs to be transplanted.
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Affiliation(s)
- Silvia Pisani
- Department of Otorhinolaryngology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Valeria Mauri
- SC General Surgery 2, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Erika Negrello
- SC General Surgery 2, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Simone Mauramati
- Department of Otorhinolaryngology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Gianluca Alaimo
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
| | - Ferdinando Auricchio
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
| | - Marco Benazzo
- Department of Otorhinolaryngology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Rossella Dorati
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Ida Genta
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | | | - Annalisa De Silvestri
- SSD Biostatistica e Clinical Trial Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Andrea Pietrabissa
- SC General Surgery 2, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Surgery, University of Pavia, Pavia, Italy
| | - Stefania Marconi
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
- Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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Pisani S, Genta I, Modena T, Dorati R, Bruni G, Benazzo M, Conti B. A proof of concept to define the parameters affecting poly-L-lactide-co-poly-ε-caprolactone shape memory electrospun nanofibers for biomedical applications. Drug Deliv Transl Res 2023; 13:593-607. [PMID: 35978259 PMCID: PMC9794533 DOI: 10.1007/s13346-022-01218-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2022] [Indexed: 12/31/2022]
Abstract
This study is a proof of concept performed to evaluate process parameters affecting shape memory effect of copolymer poly-L-lactide-co-poly-ε-caprolactone (PLA:PCL) 70:30 ratio based nanofibrous scaffolds. A design of experiment (DOE) statistical approach was used to define the interaction between independent material and process variables related to electrospun scaffold manufacturing, such as polymer solution concentration (w/v%), spinning time (min), and needle size (Gauge), and their influence on Rf% (ability of the scaffold to maintain the induced temporary shape) and Rr% (ability of the scaffold to recover its original shape) outputs. A mathematical model was obtained from DOE useful to predict scaffold Rf% and Rr% values. PLA-PCL 15% w/v, 22G needle, and 20-min spinning time were selected to confirm the data obtained from theoretical model. Subsequent morphological (SEM), chemical-physical (GPC and DSC), mechanical (uniaxial tensile tests), and biological (cell viability and adhesion) characterizations were performed.
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Affiliation(s)
- Silvia Pisani
- grid.419425.f0000 0004 1760 3027Department of Surgical Sciences, Otorhinolaryngology Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Ida Genta
- grid.8982.b0000 0004 1762 5736Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Tiziana Modena
- grid.8982.b0000 0004 1762 5736Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Rossella Dorati
- grid.8982.b0000 0004 1762 5736Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Giovanna Bruni
- grid.8982.b0000 0004 1762 5736Department of Chemistry, Physico-Chemical Section, University of Pavia, Via Taramelli 14, 27100 Pavia, Italy
| | - Marco Benazzo
- grid.419425.f0000 0004 1760 3027Department of Surgical Sciences, Otorhinolaryngology Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, 27100, Pavia, Italy.
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